KR100730199B1 - Plasma display panel - Google Patents

Abstract

A plasma display panel is provided to maximize volume of discharge cells by forming address electrodes in a groove formed in a substrate. A pair of substrates(111,112) are separated in a predetermined interval from each other and are arranged opposite to each other. A plurality of barrier ribs(120) are arranged between the pair of substrates in order to define discharge cells(160). A first discharge electrode(131) is arranged within the barrier rib in order to surround at least a part of a periphery of the discharge cells. A second discharge electrode(132) is separated from the first discharge electrode and is arranged within the barrier rib in order to surround a part of a periphery of the discharge cells. A plurality of address electrodes(140) are arranged in a groove which is formed in one of the pair of the substrates. A phosphor layer(150) is arranged within the discharge cells in order to cover partially the address electrodes. The discharge cells are filled with discharge gas.

Description

Plasma display panel {Plasma display panel}

FIG. 1 is an exploded perspective view partially showing a conventional AC three-electrode surface discharge plasma display panel.

2 is a partially cutaway perspective view showing a plasma display panel according to a first embodiment of the present invention.

3 is a cross-sectional view taken along line III-III of FIG. 2.

4 is a cross-sectional view taken along line IV-IV of FIG. 3.

5 is a partially cutaway perspective view showing a plasma display panel according to a second embodiment of the present invention.

FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 5.

FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG. 6.

Explanation of symbols on the main parts of the drawings

100 and 200: plasma display panel 110 and 210: pair of substrates

111, 211: first substrate 112, 212: second substrate

111a, 211a: groove 120, 220: bulkhead

120a and 220a: protective layers 131 and 231: first discharge electrode

132 and 232: second discharge electrode 140 and 240: address electrode

150, 250: phosphor layer 160, 280: discharge cell

260 dielectric layer 270 partition wall

The present invention relates to a plasma display panel, and more particularly, to a plasma display panel in which a groove is formed in a substrate and an address electrode is disposed in the groove.

Recently, a plasma display panel (PDP), which is drawing attention as a replacement for a conventional cathode ray tube display device, is discharged after a discharge gas is filled between two substrates on which a plurality of electrodes are formed. The phosphor formed in a predetermined pattern is excited by the ultraviolet rays generated thereby to obtain a desired image.

FIG. 1 is an exploded perspective view illustrating a conventional AC three-electrode surface discharge plasma display panel 10 partially cut away.

Referring to FIG. 1, visible light emitted from the phosphor layer 17 may include a scan electrode 12, a common electrode 13, a bus electrode 14, and the electrodes disposed on a lower surface of the first substrate 11. A substantial portion (approximately 40%) is absorbed by the dielectric layer 15 and the protective layer 16 covering the (12, 13, 14), and thus there is a problem that the luminous efficiency is low.

In addition, the address electrode 21 of the conventional plasma display panel 10 is disposed on the second substrate 20, the second dielectric layer 22 is formed on the address electrode 21, and the second dielectric layer 22 is formed. Since the phosphor layer 17 is formed on the upper surface and the sidewalls of the barrier rib 23, the thickness of the plasma display panel 10 is thickened as a whole, while the discharge space, which is a space where discharge is actually secured, is secured. There was a problem that the luminous brightness is lowered.

It is a main object of the present invention to provide a plasma display panel having a structure in which a groove is formed in a substrate and an address electrode is disposed in the groove.

The present invention provides a pair of substrates spaced apart from each other at a predetermined interval and facing each other, a partition wall disposed between the pair of substrates and defining a discharge cell together with the pair of substrates, and disposed within the partition wall and A first discharge electrode disposed to surround at least a portion of the circumference of the discharge cell, a second discharge electrode spaced apart from the first discharge electrode and disposed in the partition wall and disposed to surround at least a portion of the circumference of the discharge cell; A plasma display including an address electrode disposed in a groove formed in any one of the pair of substrates, a phosphor layer disposed in the discharge cell and at least partially covering the address electrode, and a discharge gas in the discharge cell Provide a panel.

Here, it is preferable that at least a part of the side surfaces of the partition wall is covered by the protective layer.

The first discharge electrode and the second discharge electrode may extend in one direction, and the address electrode may cross the first discharge electrode and the second discharge electrode.

Here, the address electrode may be formed in a stripe shape.

Here, at least a part of the address electrode is preferably formed of a material having high blackness.

Here, the groove may be formed in a stripe shape.

Here, partition walls may be disposed in the grooves so as to partition the grooves corresponding to the respective discharge cells.

In addition, the present invention, a pair of substrates spaced apart from each other at a predetermined interval and facing each other, a partition wall disposed between the pair of substrates and defining a discharge cell together with the pair of substrates, disposed in the partition wall And a first discharge electrode disposed to surround at least a portion of the circumference of the discharge cell, and a second discharge electrode spaced apart from the first discharge electrode and disposed in the partition wall and disposed to surround at least a portion of the circumference of the discharge cell. An address electrode disposed in a groove formed in any one of the pair of substrates, a dielectric layer disposed in the groove so as to cover the address electrode, a phosphor layer disposed in the discharge cell, and in the discharge cell. Provided is a plasma display panel including a discharge gas.

Here, it is preferable that at least a part of the side surfaces of the partition wall is covered by the protective layer.

The first discharge electrode and the second discharge electrode may extend in one direction, and the address electrode may cross the first discharge electrode and the second discharge electrode.

Here, the address electrode may be formed in a stripe shape.

Here, at least part of the address electrode may be formed of a material having high blackness.

Here, the groove may be formed in a stripe shape.

Here, partition walls may be disposed in the grooves so as to partition the grooves corresponding to the respective discharge cells.

Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings.

FIG. 2 is a partially cutaway perspective view illustrating a plasma display panel according to a first embodiment of the present invention, FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2, and FIG. 4 is a line IV-IV of FIG. 3. It is a cross-sectional view.

2 and 3, the plasma display panel 100 according to the first embodiment of the present invention includes a pair of substrate 110, a partition wall 120, a first discharge electrode 131, and a second The discharge electrode 132, the address electrode 140, and the phosphor layer 150 are included.

The pair of substrates 110 may include a first substrate 111 and a second substrate 112. The first substrate 111 and the second substrate 112 may be spaced apart from each other at a predetermined interval and face each other. It is arranged to see. The first substrate 111 is made of transparent glass, so that visible light can be transmitted.

In the first embodiment, since the first substrate 111 is transparent, visible light generated by the discharge passes through the first substrate 111, but the present invention is not limited thereto. That is, while the first substrate of the present invention is opaque, the second substrate may be made transparent, and the first substrate and the second substrate may be made transparent at the same time. In addition, the first substrate and the second substrate of the present invention may be made of a semi-transparent material, it may be configured by embedding a color filter on the surface or inside.

The first substrate 111 is formed with a groove 111a in which the address electrode 140 and the phosphor layer 150 are formed. The groove 111a is formed in a stripe shape, and is formed by sandblasting, etching, or the like.

In the first embodiment, the groove 111a is formed only in the first substrate 111, but the present invention is not limited thereto. That is, according to the present invention, a groove may be formed in the second substrate 112, and in this case, an address electrode and a phosphor layer are formed on the second substrate 112.

The partition wall 120 is disposed between the pair of substrates 110. The partition wall 120 defines a discharge cell 160, which is a space in which discharge occurs, together with the pair of substrates 110, so that the partition wall 120 is implemented with an image. It includes a function to partition the display area.

The partition wall 120 of the first embodiment has a sheet structure. That is, the partition wall 120 is formed by first filling the first discharge electrode 131 and the second discharge electrode 132 to form a sheet shape, and then forming a hole to form a space in which the discharge occurs in the sheet shape. do. However, the partition wall of the present invention is not limited to this. That is, the partition wall of the present invention may not be formed in a sheet shape, but may be directly stacked on the second substrate 112.

The partition wall 120 of the first embodiment partitions the discharge cells 160 coated with the phosphor layer 150 therein, and all the partition walls 120 partition the display area in which the image is implemented. Is not limited to this. That is, the partition wall of the present invention may be partitioned by including a dummy discharge cell in which an image is not implemented. Here, the dummy discharge cell refers to a space where the discharge electrode or the phosphor layer is not disposed and does not perform discharge. In this case, the position of the dummy discharge cell may be formed at the edge of the plasma display panel 100 or may be located between the discharge cells.

In the first embodiment, the cross-section of the discharge cell 160 partitioned by the partition wall 120 is illustrated as being circular, but the present invention is not limited thereto, and may be a polygon, an oval, or the like, such as a triangle, a square, a pentagon, or the like. Can be formed.

The partition wall 120 is made of a dielectric material, and the first discharge electrode 131 and the second discharge electrode 132 are embedded in the partition wall 120.

The dielectric constituting the partition wall 120 prevents the first discharge electrode 131 and the second discharge electrode 132 from being directly energized during the sustain discharge, and the charged particles are discharged from the first discharge electrode 131 and the second discharge electrodes ( 132) to prevent direct damage and to induce charged particles to accumulate wall charges, such as PbO, B ₂ O ₃ , SiO ₂ and the like are used.

The side surface of the partition wall 120 is covered by the protective layer 120a. The protective layer 120a is made of magnesium oxide (MgO) and the partition wall 120 formed of a dielectric material by sputtering of plasma particles and the first discharge. The electrode 131 and the second discharge electrode 132 is prevented from being damaged and serves to lower the discharge voltage by emitting secondary electrons.

Meanwhile, the second discharge electrode 132 is spaced apart from the first discharge electrode 131 and disposed in the partition wall 120 in the same direction as the extending direction of the first discharge electrode 131.

The first discharge electrode 131 and the second discharge electrode 132 are arranged to surround each discharge cell 160. In the first embodiment, the first discharge electrode 131 and the second discharge electrode 132 are formed in a ring shape as shown in FIG.

Although the shapes of the first discharge electrode 131 and the second discharge electrode 132 of the first embodiment are formed in a ring shape, the present invention is not limited thereto. That is, the portion surrounding the discharge cells of the first discharge electrode and the second discharge electrode of the present invention may be formed in a ladder shape, an elliptical ring and a polygon, the "C" shaped so as to surround only a part of the circumference of the discharge cell It may have a structure.

Since the first discharge electrode 131 and the second discharge electrode 132 of the first embodiment are disposed inside the sheet 120, the first discharge electrode 131 and the second discharge electrode 132 need to be transparent electrodes. It can be formed from a metal material having excellent conductivity and low resistance, such as Ag, Al, or Cu.

Meanwhile, the address electrode 140 is disposed in the groove 111a formed in the first substrate 111.

The address electrode 140 is formed to intersect the first discharge electrode 131 and the second discharge electrode 132. The address electrode 140 is formed in a stripe shape, and is formed to be disposed along the center of the groove 111a.

The address electrode 140 is formed of a material having high blackness to absorb external light. That is, the address electrode 140 is formed in the groove 111a after mixing a material such as silver (Ag), PbO, a binder resin, and the like with a black material to form a paste.

In the first embodiment, the entirety of the address electrode 140 is formed of a material having a high blackness to absorb external light to improve the clear room contrast, but the present invention is not limited thereto. That is, in the address electrode of the present invention, only a portion close to the first substrate 111 may be formed of a material having high blackness, thereby improving contrast.

On the other hand, the phosphor layer 150 is formed by applying the phosphor to the groove 111a formed on the first substrate 111 in accordance with the discharge cells of red, green and blue, and is formed to cover the address electrode 140. The arrangement of the phosphor layer 150 may not only form a wider space of the discharge cell 160 but also cover the address electrode 140 to protect the address electrode 140 during discharge. Also performs the function of.

The phosphor layers 150 have a component that generates ultraviolet light by receiving ultraviolet rays, and the red phosphor layer emitting red visible light includes phosphors such as Y (V, P) O ₄ : Eu, and emits green visible light. The green phosphor layer that emits light includes a phosphor such as Zn ₂ SiO ₄ : Mn, and the blue phosphor layer that emits blue visible light includes a phosphor such as BAM: Eu.

The phosphor layer 150 of the first embodiment is formed by applying a phosphor only on the inside of the groove 111a, but the present invention is not limited thereto. That is, the phosphor layer of the present invention may be formed in any part of the discharge cell if it is located inside the discharge cell can emit visible light by ultraviolet light generated by the plasma discharge. For example, after the groove is formed in the second substrate 112, the phosphor layer may be further formed in the groove, and the phosphor layer may be further formed on the side surface of the partition wall 120.

After the pair of substrates 110 are sealed, a discharge gas such as Ne, Xe, or a mixture thereof is encapsulated.

Next, the manufacturing process and operation of the plasma display panel 100 of the first embodiment will be described in detail.

The manufacturing process of the plasma display panel 100 of the first embodiment is largely divided into a partition 120 forming process, a groove 111a of the first substrate 111, an address electrode 140, and a phosphor layer 150 forming and assembling process. It can be divided into sealing and discharging gas injection process.

First, look at the forming process of the partition wall 120 having a sheet structure as follows.

The worker fills the first discharge electrode 131 and the second discharge electrode 132 and sequentially stacks dielectrics to form the partition wall 120, and then a cylindrical shape in which the discharge cell 160 is located on the partition wall 120. Make holes. In addition, a protective layer 120a made of magnesium oxide is formed on the side surface of the partition wall 120 by a vacuum deposition method.

On the other hand, the grooves 111a are formed by cutting the first substrate 110 by a glass cutting method such as sand blasting or etching, and then the address electrode 140 is formed in the grooves 111a by a printing method or the like. Subsequently, the phosphor layer 150 is formed by applying a phosphor to the groove 111a to cover the formed address electrode 140.

Next, the partition wall 120 is sandwiched between the pair of substrates 110 to perform assembly. Thereafter, the pair of substrates 110 are sealed using frit, and then a vacuum exhaust process of the plasma display panel 100 is performed to inject a discharge gas.

Looking at the operation of the plasma display panel 100 manufactured by the above process as follows.

After the assembly of the plasma display panel 100 and the injection of the discharge gas are completed, an electrode and an address electrode 140 serving as scan electrodes among the first discharge electrode 131 and the second discharge electrode 132 from an external power source. When a predetermined address voltage is applied between the < RTI ID = 0.0 >), address discharge occurs, and as a result of this address discharge, a discharge cell 160 for which sustain discharge is to be selected.

Thereafter, when a discharge holding voltage is applied between the first discharge electrode 131 and the second discharge electrode 132 of the selected discharge cell 160, the first discharge electrode 131 and the second discharge electrode 132 are applied to the discharge cell. As a result, the sustain discharge is caused by the movement of the wall charges accumulated on the side of the partition wall 120, and the ultraviolet ray is emitted while the energy level of the discharge gas excited during the sustain discharge is lowered.

In addition, the ultraviolet rays excite the phosphor 150 coated in the discharge cell 160. The energy level of the excited phosphor 150 is lowered to emit visible light, and the emitted visible light is emitted to the first substrate 111. Projecting the projected image forms an image that can be recognized by the user. At this time, since the address electrode 140 of the first exemplary embodiment has a high black color to absorb external light, the bright room contrast can be improved by preventing the external light from being reflected.

As described above, in the plasma display panel 100 of the first embodiment, the groove 111a is formed in the first substrate 111 and the address electrode 140 and the phosphor layer 150 are formed in the groove 111a. As a result, there is an advantage in that the space of the discharge cells 160 can be maximized and the light emission luminance can be increased. That is, in the case of the first embodiment, since the address electrode 140 and the phosphor layer 150 are located in the groove 111a, the volume of the discharge cell 160 becomes relatively large compared to the overall thickness, and thus the discharge cell at the time of discharge. By being able to exist in a large amount of plasma particles in 160, it is possible to easily cause the plasma discharge, thereafter, there is an advantage that can also increase the emission luminance.

In addition, as described above, since the address electrode 140 of the plasma display panel 100 of the first embodiment is made of a material having a high blackness, there is an advantage in that the contrast of the bright room can be improved.

In addition, the partition wall 120 of the plasma display panel 100 of the first embodiment has a sheet structure, so that a process of stacking the partition walls separately on the substrate is unnecessary to form the discharge cells 160. That is, in the first embodiment, since the partition wall 120 is first formed in a sheet shape and only a cylindrical hole is formed in the space where the discharge occurs, the discharge cell 160 can be formed, thereby simplifying the process. The manufacturing cost is reduced.

Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. 5 to 7.

5 is a partial cutaway perspective view illustrating a plasma display panel according to a second exemplary embodiment of the present invention, FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 5, and FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 6. It is a cross-sectional view.

5 and 6, the plasma display panel 200 according to the second embodiment of the present invention includes a pair of substrates 210, a partition wall 220, a first discharge electrode 231, and a second electrode. The discharge electrode 232, the address electrode 240, the phosphor layer 250, the dielectric layer 260, and the partition wall 270 are included.

The pair of substrates 210 includes a first substrate 211 and a second substrate 212, and the first substrate 211 and the second substrate 212 are spaced at a predetermined interval and face each other. It is arranged to see. The first substrate 211 is made of transparent glass so that visible light can pass therethrough.

The first substrate 211 is formed with a groove 211a in which the address electrode 240, the phosphor layer 250, the dielectric layer 260, and the partition wall 270 are disposed. The grooves 211a are formed in a stripe shape, and are formed by sandblasting, etching, or the like.

The partition wall 220 is disposed between the pair of substrates 210, and a cross section of the discharge cell 280 partitioned by the partition wall 220 is a quadrangle. The partition wall 220 is a discharge cell that is a space in which discharge occurs. 280 is defined with a pair of substrates 210.

The partition wall 220 of the second embodiment has a sheet structure similar to the partition wall 120 of the first embodiment described above.

In the second embodiment, the cross section of the discharge cell 280 partitioned by the partition wall 220 is formed in a quadrangle. The partition wall 220 is made of a dielectric such as PbO, B ₂ O ₃ , SiO _2, and the partition wall ( The first discharge electrode 231 and the second discharge electrode 232 are embedded in the 220.

The side surface of the partition wall 220 is covered by the protective layer 220a. Since the protective layer 220a has the same structure as the protective layer 120a of the first embodiment, the description thereof will be omitted.

On the other hand, the second discharge electrode 232 is spaced apart from the first discharge electrode 231, and is disposed in the partition wall 220 in the same direction as the extending direction of the first discharge electrode 231.

The first discharge electrode 231 and the second discharge electrode 232 are disposed to surround each discharge cell 280. In the second embodiment, the first discharge electrode 231 and the second discharge electrode 232 are formed in a ladder shape as shown in FIG.

Since the first discharge electrode 231 and the second discharge electrode 232 are disposed in the partition wall 220, the first discharge electrode 231 and the second discharge electrode 232 need not be transparent electrodes, and Ag, It can also be formed from a metal material having excellent conductivity such as Al or Cu and low resistance.

The address electrode 240 is disposed in the groove 211a formed in the first substrate 211.

The address electrode 240 is formed to intersect the first discharge electrode 231 and the second discharge electrode 232. The address electrode 240 is formed in a stripe shape, and is formed to be disposed along the center of the groove 211a.

The address electrode 240 is formed of a material having high blackness to absorb external light. That is, the address electrode 240 is formed in the groove 211a after mixing a material such as silver (Ag), PbO, a binder resin, and the like with a black material to form a paste.

After the address electrode 240 is disposed in the groove 211a, the dielectric layer 260 covers the address electrode 240, and the dielectric layer 260 serves to protect the address electrode 240 during discharge. do.

After the dielectric layer 260 is disposed in the groove 211a, the partition wall 270 is disposed.

The partition wall 270 partitions the grooves 211a to a size corresponding to each discharge cell 280, and is formed of the same material as the partition wall 220. That is, the partition wall 270 is formed at a predetermined interval D in the groove 211a, and the partition wall 270 is formed to be equal to the width B of the corresponding discharge cell 280, thereby forming a partition wall ( The space partitioned by 270 is also configured to be included in the internal space of the discharge cell 280.

On the other hand, the phosphor layer 250 is formed by applying the phosphor to the groove 211a formed in the first substrate 211 in accordance with the discharge cells of red, green and blue, the upper portion of the dielectric layer 260, partition wall 270 It is formed to cover the side and the side of the groove 211a.

In the second embodiment, the phosphor layer 250 is formed to be limited to the groove 211a, but the present invention is not limited thereto. That is, the phosphor layer of the present invention may be further formed, and the portion where the phosphor layer is additionally formed may be any portion in the discharge cell.

The phosphor layers 250 have a component that generates ultraviolet light by receiving ultraviolet rays, and the red phosphor layer emitting red visible light includes phosphors such as Y (V, P) O ₄ : Eu, and emits green visible light. The green phosphor layer that emits light includes a phosphor such as Zn ₂ SiO ₄ : Mn, and the blue phosphor layer that emits blue visible light includes a phosphor such as BAM: Eu.

In the second embodiment, the address electrode 240 and the dielectric layer 260 are sequentially formed in the groove 211a, and then the phosphor layer 250 is disposed after the partition wall 270 is formed. The name is not limited to this. That is, according to the present invention, the address electrode and the partition wall are sequentially formed in the groove formed in the substrate, and then the dielectric layer and the phosphor layer may be sequentially stacked. Further, after forming an address electrode and a dielectric layer in a groove formed in the substrate, a phosphor layer may be formed next, and a partition wall may be formed thereafter.

On the other hand, after the pair of substrates 210 are sealed, a discharge gas such as Ne, Xe, and the like and a mixture thereof is sealed.

Next, the manufacturing process and operation of the plasma display panel 200 of the second embodiment will be described in detail.

The manufacturing process of the plasma display panel 200 according to the second embodiment of the present invention is largely formed of the partition wall 220, the groove 211a of the first substrate 211, the address electrode 240, the dielectric layer 260, and the phosphor layer 250. ) And partition wall 270 may be divided into a process of forming, assembling, sealing, and discharging gas.

First, the process of forming the partition wall 220 and the protective layer 220a is the same as the case of the first embodiment described above, and thus description thereof will be omitted.

The grooves 211a are formed in the first substrate 210 by a glass cutting method such as sand blasting or etching, and the address electrodes 240 are formed in the grooves 211a by a printing method or the like. Next, a dielectric layer 260 is formed to cover the formed address electrode 240.

Next, after the partition wall 270 is formed on the dielectric layer 260 at a predetermined interval D, the phosphor layer 250 is formed on the dielectric layer 260, the sidewalls and grooves of the partition wall 270 ( 211a).

Next, the partition wall 220 is sandwiched between the pair of substrates 210 to perform assembly. Thereafter, the pair of substrates 210 are sealed using frit, and then a vacuum exhaust process of the plasma display panel 200 is performed to inject a discharge gas.

The operation of the plasma display panel 200 manufactured by the above process is as follows.

After the assembly of the plasma display panel 200 and the injection of the discharge gas are finished, the first discharge electrode 231 and the second discharge electrode 232 function as scan electrodes and an address electrode 240 from an external power source. When a predetermined address voltage is applied between the < RTI ID = 0.0 >

Thereafter, when a discharge holding voltage is applied between the first discharge electrode 231 and the second discharge electrode 232 of the selected discharge cell 280, the discharge current is applied to the first discharge electrode 231 and the second discharge electrode 232. As a result, the sustain discharge is caused by the movement of the wall charges accumulated on the side of the partition wall 220, and the ultraviolet rays are emitted while the energy level of the discharge gas excited during the sustain discharge is lowered.

The ultraviolet rays excite the phosphor 250 coated in the discharge cell 280. The energy level of the excited phosphor 250 is lowered to emit visible light, and the emitted visible light is emitted to the first substrate 211. Projecting the projected image forms an image that can be recognized by the user.

As described above, in the plasma display panel 200 of the second embodiment, the groove 211a is formed in the first substrate 211, and the address electrode 240, the dielectric layer 260, and the phosphor layer are formed in the groove 211a. By forming the 250, the space of the discharge cell 280 may be maximized to increase the light emission luminance.

In addition, since the address electrode 240 of the plasma display panel 200 of the second embodiment is made of a material having a high blackness, there is an advantage of improving contrast in a bright room.

Also, in the plasma display panel 200 of the second embodiment, the partition wall 270 is formed in the groove 211a, thereby effectively preventing the electro-optic crosstalk between the discharge cells 280. There is an advantage.

In addition, since the partition wall 220 of the plasma display panel 200 of the second embodiment has a sheet structure, the manufacturing process thereof is simplified, and thus manufacturing cost is reduced.

As described above, in the plasma display panel according to the present invention, by forming a groove in the substrate and an address electrode in the groove, the volume of the discharge cell, which is a space where discharge occurs, can be maximized. In this case, the plasma particles may be present in a large amount in the discharge cell during discharge, thereby increasing the emission luminance of the plasma display panel.

In addition, the plasma display panel of the present invention can be configured so that the discharge electrodes are embedded in the partition wall to surround the discharge cell, the discharge area is relatively wide, the light emission luminance and the discharge efficiency is increased.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (14)

A pair of substrates spaced at predetermined intervals and facing each other; A partition wall disposed between the pair of substrates and defining a discharge cell together with the pair of substrates; A first discharge electrode disposed in the partition wall and disposed to surround at least a portion of a circumference of the discharge cell; A second discharge electrode spaced apart from the first discharge electrode and disposed in the partition wall and disposed to surround at least a portion of a circumference of the discharge cell; An address electrode disposed in a groove formed in any one of the pair of substrates; A phosphor layer disposed in the discharge cell, wherein at least a portion of the phosphor layer covers the address electrode; And And a discharge gas in the discharge cell. The method of claim 1, At least a portion of a side surface of the partition wall is covered by a protective layer. The method of claim 1, And the first discharge electrode and the second discharge electrode extend in one direction, and the address electrode crosses the first discharge electrode and the second discharge electrode. The method of claim 3, And the address electrode is formed in a stripe shape. The method of claim 3, At least a portion of the address electrode is formed of a material having high blackness. The method of claim 1, And the grooves have a stripe shape. The method of claim 1, And a partition wall disposed in the groove so as to partition the groove corresponding to each of the discharge cells. A pair of substrates spaced at predetermined intervals and facing each other; A partition wall disposed between the pair of substrates and defining a discharge cell together with the pair of substrates; A first discharge electrode disposed in the partition wall and disposed to surround at least a portion of a circumference of the discharge cell; A second discharge electrode spaced apart from the first discharge electrode and disposed in the partition wall and disposed to surround at least a portion of a circumference of the discharge cell; An address electrode disposed in a groove formed in any one of the pair of substrates; A dielectric layer disposed in the groove to cover the address electrode; A phosphor layer disposed in the discharge cell; And And a discharge gas in the discharge cell. The method of claim 8, At least a portion of a side surface of the partition wall is covered by a protective layer. The method of claim 8, And the first discharge electrode and the second discharge electrode extend in one direction, and the address electrode crosses the first discharge electrode and the second discharge electrode. The method of claim 10, And the address electrode is formed in a stripe shape. The method of claim 10, At least a portion of the address electrode is formed of a material having high blackness. The method of claim 8, And the grooves have a stripe shape. The method of claim 8, And a partition wall disposed in the groove so as to partition the groove corresponding to each of the discharge cells.

Images